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ad9154: retry initialization (#727)
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@ -473,6 +473,17 @@ fn dac_cfg(dacno: u8) -> Result<(), &'static str> {
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Ok(())
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}
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fn dac_cfg_retry(dacno: u8) -> Result<(), &'static str> {
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for i in 0..99 {
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let outcome = dac_cfg(dacno);
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match outcome {
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Ok(_) => return outcome,
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Err(e) => warn!("AD9154-{} config attempt #{} failed ({}), retrying", dacno, i, e)
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}
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}
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dac_cfg(dacno)
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}
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pub fn init() -> Result<(), &'static str> {
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// Release the JESD clock domain reset late, as we need to
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// set up clock chips before.
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@ -481,7 +492,7 @@ pub fn init() -> Result<(), &'static str> {
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for dacno in 0..csr::AD9154.len() {
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let dacno = dacno as u8;
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debug!("setting up AD9154-{} DAC...", dacno);
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dac_cfg(dacno)?;
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dac_cfg_retry(dacno)?;
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}
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Ok(())
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}
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